Elevating apparatus for building materials, etc.



Aixgffi, I929. J. BUSHNELL 1,723,721

ELEVATING APPARATUS FOR BUILDING MATERIALS ETC Filed Jan. 27, 1928Patented Aug. 6, 1929.

UNITED STATES PATENT OFFICE.

JAMES E. BUSHNELL, OF NORTH PLAINFIELD, JERSEY, ASSIGNOR 1'0 RAN SOMECONCRETE MACHINERY COMPANY, OF PLAINFIELD, NEW JERSEY, A CORPORA- TIONOF NEW JERSEY.

ELEVATING APPARATUS FOR BUILDING MATERIALS, ETC.

Application filed January 27, 1928. Serial No. 249,808.

\ progresses.

in such constructum work, when this type of distributing plant isemployed, it is desirable and frequently necessary to elevate variouskinds of building materials which. cannot be handled by the conm1onlyused concrete bucket or hoist.

lvliore particularly, the present improvements have, as their primaryobject, among others, the provision of means comprising a material hoistor platform, mounted for 11lovement on the tower, without interferingwith the normal operation of the distributing plant. Such material hoistbeing designed to elevate barrows with or without contents, buildingmaterials or other things to the point of the work desired.

In the accompanying drawings, one form 0 I? the improvements isillustrated, in which F 1 a side elevation of a (listributing plantembodying the improvements;

F 2 is a front View thereof, with hopper and boom removed.

In the construction illustrated, uprights 9, 2 are preferably in theform of channel beams and are secured in position to form the lower .1.by suitable diagonal braces or other .n'ieans. The usual guy ropes orcables- (not shown) are attached at intervals along the tower torsteadying and maintaining same erect. A track provided within the tower,as shown, onv which the frame or bail 4L and lmcket 5 pivoted therein,are adapted to travel. Any convenient means may be employed forelevating and lowering the ilirame and bucket, as :lor example, a cableattached to said frame, extending over a sheave at the top f the tower,down over sheave 6, to a suitable power means 6. The concrete hoist orbucket 5 is of the usual tip-over type, being normally erect torreceivmg a charge from a mixer through chute 7, near the ground level ormixing point, whence it elevated within the tower to discharge itscontents into hopper 8. Relno'vahle trip means or switches h areprovided on the hopper, in the path at travel of rollers 10 on the noseo]? hoist 5, whereby said hoist, when elevated. so that roll ers 1t)ride in switches 9, will. dump its contents into the hopper 8, :fordistrilmtion by gravity through chute 11, and other connecting chutes,to the point of placement. Hopper 8 is slidably or adjustably mounted onbeams .2, ot' tower 1, in order to vary the speed of the materials ingravity distribution, to alter the position ol? the chutes with re spectto the work as it progresses, and for other reasons. Any convenientmeans, such as sheaves and cables running to the power means, may beemployed. for adjusting the position of the hopper 8.

The distributing chute 11 or other chutes, are braced or supported, asis common, by boom. 12, pivotal ly mounted. on boom bracket or support13, which latter is adjustably mounted on beams 2 0'1? tower l, forsliding thereon, to be secured in. any desired po sition. The boomsupport 13, formed to withstaml shock and strains, preferably projectsfrom the side plane of the tower somewhat in. the form. of a pyramid,altho other constructions are obvious for the intended pin-pose.Conveniently mounted on said support are sheaves 14; and 15, oneadjacent the center of the support and the other zul iacent the sideedge thm'eot. Although said sheaves are shown in Fig. 2, on the rightside ot the support, it is understood that they may be arranged in anydesired manner known. Furthermore but one sheave, suitably mounted, maybe employed. Although iiu lividual elevating means are illustrated lorthe hopper 8 and support 123, these elements may be adj ustably mountedon an adj ustablc frame as disclosed. in copending application tiledJune 18, 1926, Serial No. 1116,77 1.

An elevator or material. hoist 16, adapted to be elevated and lowered,is movably mounted on that side of the tower or must carrying support13, by rollers thereon (not shownl which ride in beams 2 oi? the tower.Any suitable elevating means for the hoist 16, cooperating withsi'lpport 1:, may be employed, the illustrated embodiment comprising acable or rope 17, securedv at one end (18) to the hoist or platform 16,extending therefrom over sheaves 14 and 15 in the boom support, throughsheave 19 mounted near the base of the tower, to a suitable winding drumor power means 6. The hoist 16 may be of any desired dimensions orconfiguration, although preferably angular in cross-section asillustrated. Obviously the mechanical ad vantage of the elevating meansfor the hoist 16 may be increased by other arrangements of the sheavesand cable without departing from the scope of the presentin'iprovements.

Since the material hoist is raised and lowered by a cable or other meansco-operating with the boom support, it is obvious that the clearanceafforded for its travel is governed by the position of said support,which latter position is determined by the progress or level of theconstruction work. Due to the fact that the chute 11 is at a pointconsiderably above the highest working point of the building, and theboom support is on a level or above said point, ample space exists between the ground and the support 13 in which the platform 16 may travel.Accordingly all levels of the construction work are accessible to thetraveling hoist 16 which is adapted to handle materials withoutinterfering with the normal operation of the distributing plant.

As the bucket 5 is traveling within the tower, the hoist 16 on theoutside thereof, may also be functioning. It is apparent that both thehoists 5 and 16 may be operated at different speeds, alternately orotherwise operated.

By providing operative connections between the material hoist and thesupport 13, the present improvements facilitate assembly of theorganization, eliminate separate supports on the tower for the hoistelevating mechanism and centralize the additional load of the hoist atthe bracket supporting the boom. The advantages of these features willbe fully appreciated when it is realized that the bracket 13, made ofrugged and sturdy construction to withstand the weight and strains ofthe boom, need not, in general, be altered. The various elements of theorganization are so proportioned and arranged about the tower, as toprovide even distribution of the forces it is called upon to withstand.

VVhile the improvements herein set forth are preferably embodied withthe material hoist cable co-operating with sheaves mounted on a boomsupport, as illustrated, it is apparent that said sheaves may be mountedon any other sliding frame movable on the tower. 7

Other advantages and modifications within the scope of the presentimprovements,

will be apparent to those skilled in the art.

\Vhat I claim is:

1. In apparatus of the character described, an upright tower, a boomsupport thereon, a. concrete hoist and a material hoist slidable on saidtower, elevating means for said material hoist cooperating with saidsupport.

2. The combination as set forth in claim 1, wherein said boom support isadjustable on said tower.

The combination as set forth in claim 1, wherein said concrete hoist isslidable within the tower.

l. The combination as set forth in claim 1, wherein said boom support isadjustable on said tower and said concrete hoist is slidable within thetower.

5. in an apparatus of the character described, an upright tower havingmounted on the outside thereof an adjustable boom support, a hopper anda slidable material hoist, said hoist being beneath said support andsustained thereby and a concrete hoist slidable within the tower.

6. In an apparatus of the character described, an upright tower, ahopper, a material hoist, a boom and support therefor, and a concretehoist, all adapted to be moved on said tower, aml operative connectionsbetween said support andv said material hoist, for moving the latterwith respect to the former.

7. The apparatus as set forth in. claim 6, wherein said concrete hoistis positioned within said tower.

8. In an apparatus of the character described, an upright tower, anelevator bucket slidable within said tower, a hopper mounted on saidtower and arranged to receive the contents of said bucket, adjustableboom support means mounted on said tower, a material hoist mounted onthe same side of the tower as said support means and beneath same, andan elevating cable opmativcly connecting said material hoist and saidsupport means.

9. In apparatus of the character described, an upright tower, a boomsupport thereon, a material hoist slidable on said tower andmeans'cooperating with said support for sliding said material hoist.

10. In apparatus of the character described, a tower, a material hoistslidable thereon, a boom adapted to support distributing members and aconunon means on said tower for sustaining said hoist and boom.

Vitness my hand this 25 day of January, 1928, at Dunellen, N. J.

JAMES E. BUSHNELL.

